Crankbait (Shallow) Fishing on John Martin Reservoir
John Martin Reservoir · Colorado · West
John Martin Reservoir is a large, scenic impoundment located in Bent County, Colorado, featuring numerous coves, submerged structure, and rocky shorelines that hold largemouth and smallmouth bass. The reservoir's elevation of 3,630 feet and varied terrain create diverse habitat zones that support consistent bass populations throughout the year. This high plains reservoir is popular with regional anglers for its combination of accessible fishing and good catch rates.
Square-bill and shallow-diving crankbaits (0–6 feet) deflect off wood and rock, triggering reaction strikes. The erratic wobble on contact is the strike trigger. Best fished fast around hard cover — laydowns, stumps, rip-rap, and dock pilings where bass are ambushing.
Crankbait (Shallow) Setup for John Martin Reservoir
| Rod | 7'–7'6" medium casting rod, moderate action (critical — absorbs hooksets and keeps fish pinned) |
| Reel | 5.4:1–6.4:1 baitcaster (slower retrieve for more action) |
| Line | 12–17 lb fluorocarbon (sinks lure slightly, adds action) |
| Weight | Square bill 3/8–1/2 oz; shallow diver 1/4–3/8 oz |
Seasonal Tactics on John Martin Reservoir
Lake: Spring brings aggressive feeding as bass move to shallow coves and spawning areas near main lake creek channels. Crankbaits, spinnerbaits, and topwater lures produce well as water temperatures warm into the 50s and 60s.
Crankbait (Shallow): Pre-spawn best season. Deflect off stumps and wood in 2–6 feet. Crawfish colors (red/orange) dominate.
Lake: Summer bass retreat to deeper structure, main lake points, and rocky ledges where cooler water provides relief. Offshore fishing with drop shots, Carolina rigs, and deep-diving crankbaits near the dam and creek channels becomes most effective.
Crankbait (Shallow): Early morning and evening only in shallow. Fish shaded wood. Shad colors midday.
Lake: Fall migration patterns push bass into mid-depth zones and along the main creek channel where baitfish congregate. Shad-pattern crankbaits, swimbaits, and soft plastics work well as bass feed heavily before winter.
Crankbait (Shallow): Cover water along banks and points fast. Shad patterns — white, ghost, and natural baitfish colors.
Lake: Winter bass slow considerably but remain catchable near deeper holes and the main channel. Slow presentations with jigging spoons, drop shots, and small soft plastics near structure produce the most consistent results in cold water.
Crankbait (Shallow): Switch to suspending crankbait with slower retrieve. Minnow-style baits outperform wide wobble in cold water.
Best Conditions
Stained water, wood and rock cover, spring pre-spawn, windy days, post-spawn, fall feeding
Use a moderate-action rod, not fast. A fast rod causes you to rip the bait away from fish on the strike — the rod needs to load and bend.
More Techniques for John Martin Reservoir
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