Lake Mary and J D Dam

Flagstaff, Arizona

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Over the years Upper and Lower Lake Mary and J D Dam have not been great places to fish. If that’s where you happen to be, however, they can provide a day of fly fishing for trout and pike. Here’s how they came to be. The city of Flagstaff, at 7,000' elevation, is built on the remnants of a great volcanic field of porous rock. Most of the snow or rain goes underground so streams don’t run down the mountain very well. Therefore, Flagstaff built Upper and Lower Lake Mary for water storage. The two Lake Marys were built in a canyon just east of town in the Coconino National Forest. Upper Lake Mary is 600 acres. Both are lined with pines and cedars, have lots of picnic areas, and have small boat access. J D Dam, another reservoir, is just south of Williams in the Kaibab National Forest. The 15 acres of lake is good kick boat water. It’s been adopted by the fly fishing club in Flagstaff and can fish pretty well at times. Its leaky dam was recently renovated, and the lake level will probably be back to normal by the time you read this. Types of Fish: Rainbow and brown trout, bass, pike, sunfish. This eTrail covers the "where, when, and how" to fish in this region. You'll get a full-page map and information on the known hatches, suggested equipment to bring, and the best flies to use.

Lake Mary & J D Dam Professional Review and Guide

"Over the years Upper and Lower Lake Mary and J D Dam have not been great places to fish. If that’s where you happen to be, however, they can provide a day of fly fishing for trout and pike. Here’s how they came to be. The city of Flagstaff, at 7,000' elevation, is built on the remnants of a great volcanic field of porous rock. Most of the snow or rain goes underground so streams don’t run down the mountain very well. Therefore, Flagstaff built Upper and Lower Lake Mary for water storage. The two Lake Marys were built in a canyon just east of town in the Coconino National Forest. Upper Lake Mary is 600 acres.

Both are lined with pines and cedars, have lots of picnic areas, and have small boat access. J D Dam, another reservoir, is just south of Williams in the Kaibab National Forest. The 15 acres of lake is good kick boat water. It’s been adopted by the fly fishing club in Flagstaff and can fish pretty well at times. Its leaky dam was recently renovated, and the lake level will probably be back to normal by the time you read this. Types of Fish: Rainbow and brown trout, bass, pike, sunfish. This eTrail covers the "where, when, and how" to fish in this region. You'll get a full-page map and information on the known hatches, suggested equipment to bring, and the best flies to use."

Activity Type: Fly-Fishing
Nearby City: Flagstaff
Trail Type: Several options
Season & Limits: Spring, summer, and fall
Driving Directions: Directions to Lake Mary & J D Dam

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May 2018