Cash DavidA U.S. snake field guideExplore the guide

Curiosity, with context

A guide you can
look into.

Good field guides make their sources easy to find. Here is what is in this collection, where it comes from, and where the evidence is still incomplete.

01 / The collection

179 species.
Always learning.

A snapshot of native snakes drawn from North American checklists and territory references. Names and distributions can change; this is not a complete inventory of every local population.

02 / A sense of place

Checklists,
with context.

Maps show presence by jurisdiction. They do not establish exact occurrence or represent USGS habitat models. Provisional territory records are labeled.

03 / A closer look

Real photographs.
Visible credits.

175 documentary photos have recorded taxon-match evidence and reuse licenses. Four rare blindsnakes use labeled illustrations. Resized images retain the source license and original attribution.

04 / A living reference

Know the
limits.

167 records lack an ITIS cross-reference. Descriptions include broad group-level summaries. This guide is for learning, not definitive identification or medical decisions.

Go to the source

Follow the evidence.

Venomous Snakes ↗

National Park Service · North American coral-snake and pit-viper safety context

Behind every image

Photographs & credits.

179 image attributions

Complete species index — 179 accounts
Apalachicola KingsnakeAquatic GartersnakeArizona Black RattlesnakeArizona Mountain KingsnakeBaird's RatsnakeBaja California CoachwhipBaja California RatsnakeBanded SandsnakeBlack SwampsnakeBlack-necked GartersnakeBlack-tailed RattlesnakeBrazos WatersnakeBroad-banded CopperheadBrown WatersnakeButler's GartersnakeCalifornia Black-headed SnakeCalifornia KingsnakeCalifornia LyresnakeCalifornia Mountain KingsnakeCentral American Indigo SnakeCentral RatsnakeCheckered GartersnakeChihuahuan Black-headed SnakeChihuahuan Hook-nosed SnakeChihuahuan NightsnakeCoast NightsnakeCoastal BlindsnakeCommon CoachwhipCommon GartersnakeCommon Glossy SnakeCommon ScarletsnakeCommon Sharp-tailed SnakeCommon WatersnakeCommon WormsnakeConcho WatersnakeDekay’s BrownsnakeDesert KingsnakeDesert NightsnakeDiamond-backed WatersnakeEastern Black KingsnakeEastern Black-tailed RattlesnakeEastern CopperheadEastern Diamond-backed RattlesnakeEastern FoxsnakeEastern Hog-nosed SnakeEastern Indigo SnakeEastern KingsnakeEastern MassasaugaEastern MilksnakeEastern PinesnakeEastern RibbonsnakeFlat-headed BlindsnakeFlat-headed SnakeFlorida BrownsnakeFlorida CottonmouthFlorida Crowned SnakeFlorida Green WatersnakeFlorida KingsnakeFlorida Rough GreensnakeForest Sharp-tailed SnakeGiant GartersnakeGlossy SwampsnakeGophersnakeGraham's Crawfish SnakeGrant's BlindsnakeGray-banded KingsnakeGreat Plains GroundsnakeGreat Plains RatsnakeGreen RatsnakeHarlequin CoralsnakeKirtland's SnakeLined SnakeLong-nosed SnakeLouisiana PinesnakeMadrean Mountain KingsnakeMexican Black-headed SnakeMexican GartersnakeMexican Hog-nosed SnakeMississippi Green WatersnakeMohave RattlesnakeMohave Shovel-nosed SnakeMona BlindsnakeMona Island BoaMountain Patch-nosed SnakeNarrow-headed GartersnakeNorth American RacerNorthern Cat-eyed SnakeNorthern CottonmouthNorthern Mole KingsnakeNorthern Rosy BoaNorthern Rough GreensnakeNorthwestern GartersnakePanamint RattlesnakePine Woods LittersnakePlain-bellied WatersnakePlains Black-headed SnakePlains GartersnakePrairie KingsnakePrairie RattlesnakePuerto Rican BoaPuerto Rican Garden SnakePuerto Rican RacerPuerto Rican Wetland BlindsnakePygmy RattlesnakeQueensnakeRainbow SnakeRed CornsnakeRed Diamond RattlesnakeRed-bellied MudsnakeRed-bellied SnakeRegal Black-striped SnakeRichard's BlindsnakeRidge-nosed RattlesnakeRim Rock Crowned SnakeRing-necked SnakeRock RattlesnakeRough EarthsnakeRubber BoaSaddled Leaf-nosed SnakeSaltmarsh SnakeScarlet KingsnakeSchott's WhipsnakeShort-headed GartersnakeShort-tailed KingsnakeSidewinderSierra GartersnakeSlowinski's CornsnakeSmooth EarthsnakeSmooth GreensnakeSonoran CoralsnakeSonoran LyresnakeSonoran Shovel-nosed SnakeSonoran WhipsnakeSouth Florida Mole KingsnakeSouth Texas GroundsnakeSoutheastern Crowned SnakeSouthern Hog-nosed SnakeSouthern WatersnakeSouthwestern Black-headed SnakeSouthwestern Speckled RattlesnakeSpeckled KingsnakeSpeckled RacerSpotted Leaf-nosed SnakeStriped RacerStriped SwampsnakeStriped WhipsnakeTamaulipan Hook-nosed SnakeTerrestrial GartersnakeTexas CoralsnakeTexas LyresnakeTexas ScarletsnakeTexas ThreadsnakeThornscrub Brown VinesnakeThornscrub Hook-nosed SnakeThree-lined BoaTiger RattlesnakeTimber RattlesnakeTrans-Pecos Black-headed SnakeTrans-Pecos RatsnakeTricolor Shovel-nosed SnakeTwin-spotted RattlesnakeTwo-striped GartersnakeVirgin Islands Tree BoaWestern Black KingsnakeWestern Diamond-backed RattlesnakeWestern FoxsnakeWestern GroundsnakeWestern Hog-nosed SnakeWestern MassasaugaWestern MilksnakeWestern Patch-nosed SnakeWestern RatsnakeWestern RattlesnakeWestern RibbonsnakeWestern ThreadsnakeWestern WormsnakeYaqui Black-headed SnakeYellow RatsnakeYellow-bellied Seasnake